His hesitance is very, very obvious. At first Madoka wonders if maybe he just needs a moment to decide, and she herself decides to stay quiet to give him that time.

.. but then the awkward silence just lingers, and instead Madoka's look somehow manages to get even more like a cute sad little kitten's.

"Um.. it's fine if you don't want to. I'm sorry if I'm being too pushy, I just didn't want you to feel lonely during our break here.."